■ GENTOS LED Bike Light RL-00R, new and unused. ■ Set Contents: (A) Rear light body (B) Bracket (C) Silicone strap [Large] (compatible diameter: 27-32mm) (D) Silicone strap [Small] (compatible diameter: 22-26mm) (E) Micro USB cable ■ Light Source: High-brightness chip-type red LED x 12 ■ Battery: Built-in lithium polymer rechargeable battery 3.7V 110mAh ■ Lighting Duration: Practical lighting: Approximately 7.5 hours Flashing A: Approximately 8 hours Flashing B: Approximately 25 hours Flashing C: Approximately 14.5 hours Flashing D: Approximately 20 hours Flashing E: Approximately 12.5 hours ■ Body Size: 41x41x29mm ■ Body Weight: Approximately 25g (including battery) ■ Mode Memory Function: When turned on again, it lights up in the lighting mode that was used when it was last turned off. ■ This rear light is packed with features such as a charging indicator (to check charging progress) and a battery indicator (to show remaining battery life). ● Images 3 and 7 are of a different item that was opened for photography. The mode memory function and battery indicator were convenient features when I tested them. Highly recommended. ● Images 4, 5, and 6 are examples of installation. The back of the main unit is hook-shaped, so it can be used in even more ways. ● Although the product is unopened, it will be partially opened for shipping to reduce shipping costs. Please be aware of this. Thank you.